Documentation:AccessExpression: Difference between revisions

AccessExpression

Revision as of 05:48, 5 February 2024

ViewModels have a rooted AccessExpression that should return true or false (empty defaults to true). This expression controls whether the ViewModel is shown or not - the evaluation is done after any accessgroup evaluation. This expression complements the accessgroups as it checks the root objects' values and not only global values as accessgroups.

The AccessExpression can be checked before ViewModel creation with the OCL canAccess operator.

Note: Prior to 2021-02-01, the AccessExpression and AccessGroup.ViewEnableExpression had issues in both WPF and Turnkey - but are now fixed.

This page was edited 95 days ago on 06/17/2024. What links here

Revision as of 21:12, 20 December 2023 (view source) Wikiadmin (talk \| contribs) m ((username removed) (log details removed): Moving to Documentation namespace) ← Older edit		Revision as of 05:48, 5 February 2024 (view source) Stephanie Namugambe (talk \| contribs) No edit summary Tag: Visual edit Newer edit →
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	ViewModels have a rooted AccessExpression that should return true or false (empty defaults to true). This expression controls whether the ViewModel is shown or not - the evaluation is done after any [[Access control system in MDriven\|accessgroup]] evaluation. This expression complements the accessgroups as it checks the root objects' values and not only global values as accessgroups.		ViewModels have a rooted AccessExpression that should return true or false (empty defaults to true). This expression controls whether the ViewModel is shown or not - the evaluation is done after any [[Training:Access control system in MDriven\|accessgroup]] evaluation. This expression complements the accessgroups as it checks the root objects' values and not only global values as accessgroups.

	The AccessExpression can be checked before ViewModel creation with the OCL [[OCLOperators canAccess\|canAccess]] operator.		The AccessExpression can be checked before ViewModel creation with the OCL [[OCLOperators canAccess\|canAccess]] operator.